| 摘要 |
PROBLEM TO BE SOLVED: To provide a joint finishing material suppressing the discoloration of an external coating film and preventing the external coating film from being blistered without lowering adhering performance. SOLUTION: This joint finishing material 10A comprises an adhering layer so adhered to wall members as to cover a joint between the wall members, a reinforcing layer formed of at least one layer and arranged outside the adhesive layer, and a cushioning section 16 which is interposed between the adhesive layer and the reinforcing layer and in which a cushioning material 15 is partially installed. The adhesive layer is a reactant of a copolymer obtained by copolymerizing a (meta) acrylic monomer and an isocyanate hardener, does not contain an adhesion grant agent. and has a ball initial adhesion value of 5-24 which is measured by the initial adhesion test method (inclination angle: 30°) according to JIS Z 0237. When the reinforcing layer comprises a plurality of layers, the cushioning section may be formed between any of the plurality of layers. COPYRIGHT: (C)2009,JPO&INPIT
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